/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:05:44,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:05:44,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:05:44,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:05:44,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:05:44,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:05:44,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:05:44,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:05:44,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:05:44,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:05:44,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:05:44,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:05:44,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:05:44,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:05:44,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:05:44,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:05:44,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:05:44,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:05:44,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:05:44,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:05:44,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:05:44,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:05:44,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:05:44,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:05:44,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:05:44,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:05:44,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:05:44,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:05:44,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:05:44,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:05:44,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:05:44,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:05:44,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:05:44,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:05:44,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:05:44,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:05:44,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:05:44,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:05:44,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:05:44,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:05:44,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:05:44,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 08:05:44,613 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:05:44,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:05:44,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:05:44,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:05:44,618 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:05:44,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:05:44,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:05:44,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:05:44,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:05:44,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:05:44,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:05:44,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:05:44,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:05:44,623 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:05:44,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:05:44,624 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:05:44,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:05:44,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:05:44,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:05:44,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:05:44,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:05:44,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:05:44,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:05:44,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:05:44,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:05:44,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:05:44,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:05:44,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:05:44,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:05:44,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:05:44,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:05:45,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:05:45,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:05:45,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:05:45,043 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:05:45,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label42.c [2020-10-29 08:05:45,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f0e7284c/7e6dbe28e621497298f14863ed0401ed/FLAGb548bb01b [2020-10-29 08:05:46,002 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:05:46,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label42.c [2020-10-29 08:05:46,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f0e7284c/7e6dbe28e621497298f14863ed0401ed/FLAGb548bb01b [2020-10-29 08:05:46,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f0e7284c/7e6dbe28e621497298f14863ed0401ed [2020-10-29 08:05:46,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:05:46,134 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:05:46,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:05:46,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:05:46,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:05:46,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:05:46" (1/1) ... [2020-10-29 08:05:46,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115f2888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:46, skipping insertion in model container [2020-10-29 08:05:46,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:05:46" (1/1) ... [2020-10-29 08:05:46,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:05:46,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:05:47,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:05:47,133 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:05:47,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:05:47,387 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:05:47,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47 WrapperNode [2020-10-29 08:05:47,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:05:47,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:05:47,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:05:47,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:05:47,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (1/1) ... [2020-10-29 08:05:47,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (1/1) ... [2020-10-29 08:05:47,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (1/1) ... [2020-10-29 08:05:47,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (1/1) ... [2020-10-29 08:05:47,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (1/1) ... [2020-10-29 08:05:47,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (1/1) ... [2020-10-29 08:05:47,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (1/1) ... [2020-10-29 08:05:47,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:05:47,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:05:47,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:05:47,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:05:47,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:05:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:05:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:05:47,705 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:05:47,705 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:05:47,705 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:05:47,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:05:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:05:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:05:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:05:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:05:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:05:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:05:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:05:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:05:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:05:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:05:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:05:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:05:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:05:47,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:05:47,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:05:50,967 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:05:50,967 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:05:50,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:05:50 BoogieIcfgContainer [2020-10-29 08:05:50,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:05:50,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:05:50,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:05:50,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:05:50,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:05:46" (1/3) ... [2020-10-29 08:05:50,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436446db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:05:50, skipping insertion in model container [2020-10-29 08:05:50,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:05:47" (2/3) ... [2020-10-29 08:05:50,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436446db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:05:50, skipping insertion in model container [2020-10-29 08:05:50,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:05:50" (3/3) ... [2020-10-29 08:05:50,979 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label42.c [2020-10-29 08:05:50,993 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:05:50,999 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:05:51,013 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:05:51,045 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:05:51,045 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:05:51,046 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:05:51,046 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:05:51,046 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:05:51,046 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:05:51,046 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:05:51,046 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:05:51,075 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:05:51,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 08:05:51,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:51,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:51,087 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:51,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:51,095 INFO L82 PathProgramCache]: Analyzing trace with hash -586602900, now seen corresponding path program 1 times [2020-10-29 08:05:51,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:51,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933522657] [2020-10-29 08:05:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:51,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:52,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:52,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 08:05:52,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:52,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 639 [2020-10-29 08:05:52,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:52,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:52,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:05:52,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:05:52,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 08:05:52,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:05:52,283 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 08:05:52,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:52,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:52,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:52,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:52,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:52,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:05:52,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:52,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:52,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:52,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:05:52,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:05:52,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933522657] [2020-10-29 08:05:52,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:05:52,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 08:05:52,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535957838] [2020-10-29 08:05:52,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:05:52,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:52,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:05:52,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:05:52,424 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 5 states. [2020-10-29 08:05:52,623 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 08:05:59,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:59,918 INFO L93 Difference]: Finished difference Result 1520 states and 2854 transitions. [2020-10-29 08:05:59,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 08:05:59,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-10-29 08:05:59,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:59,951 INFO L225 Difference]: With dead ends: 1520 [2020-10-29 08:05:59,952 INFO L226 Difference]: Without dead ends: 1039 [2020-10-29 08:05:59,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:59,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-29 08:06:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1032. [2020-10-29 08:06:00,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-10-29 08:06:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1667 transitions. [2020-10-29 08:06:00,102 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1667 transitions. Word has length 69 [2020-10-29 08:06:00,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:00,102 INFO L481 AbstractCegarLoop]: Abstraction has 1032 states and 1667 transitions. [2020-10-29 08:06:00,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:06:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1667 transitions. [2020-10-29 08:06:00,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-29 08:06:00,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:00,118 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:00,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:06:00,119 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:00,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:00,120 INFO L82 PathProgramCache]: Analyzing trace with hash -2029076570, now seen corresponding path program 1 times [2020-10-29 08:06:00,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:00,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848785435] [2020-10-29 08:06:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:00,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:00,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:03,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:05,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:05,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:06:05,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:06:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 08:06:05,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:05,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:06:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:06:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-29 08:06:05,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:05,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:05,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:05,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:05,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:05,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:05,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:06:05,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:05,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:06:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 08:06:05,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:05,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:05,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:05,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 08:06:05,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:06:05,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-29 08:06:05,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:05,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 08:06:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:05,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 08:06:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:05,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:05,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:05,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 08:06:05,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:05,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 08:06:05,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:05,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 08:06:05,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 191 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:06:06,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848785435] [2020-10-29 08:06:06,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:06,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:06,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793870445] [2020-10-29 08:06:06,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:06,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:06,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:06,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:06,070 INFO L87 Difference]: Start difference. First operand 1032 states and 1667 transitions. Second operand 7 states. [2020-10-29 08:06:11,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:11,606 INFO L93 Difference]: Finished difference Result 2771 states and 4601 transitions. [2020-10-29 08:06:11,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:06:11,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-29 08:06:11,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:11,624 INFO L225 Difference]: With dead ends: 2771 [2020-10-29 08:06:11,624 INFO L226 Difference]: Without dead ends: 1745 [2020-10-29 08:06:11,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:11,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2020-10-29 08:06:11,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1728. [2020-10-29 08:06:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2020-10-29 08:06:11,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2623 transitions. [2020-10-29 08:06:11,767 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2623 transitions. Word has length 236 [2020-10-29 08:06:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:11,769 INFO L481 AbstractCegarLoop]: Abstraction has 1728 states and 2623 transitions. [2020-10-29 08:06:11,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:11,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2623 transitions. [2020-10-29 08:06:11,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-29 08:06:11,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:11,777 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:11,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:06:11,778 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:11,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:11,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1043814390, now seen corresponding path program 1 times [2020-10-29 08:06:11,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:11,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433643106] [2020-10-29 08:06:11,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:11,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:11,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:12,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:16,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:16,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-29 08:06:16,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:06:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 08:06:16,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:16,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 08:06:16,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:06:16,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:16,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:16,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:16,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:16,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:16,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:16,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:06:16,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:16,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:16,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:16,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:16,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:16,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:17,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:17,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:17,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:17,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:06:17,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 08:06:17,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:17,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:06:17,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:17,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 08:06:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:17,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:17,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:17,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 08:06:17,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:17,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 08:06:17,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:17,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 08:06:17,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 211 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 08:06:17,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433643106] [2020-10-29 08:06:17,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:17,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:17,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414885907] [2020-10-29 08:06:17,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:17,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:17,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:17,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:17,511 INFO L87 Difference]: Start difference. First operand 1728 states and 2623 transitions. Second operand 7 states. [2020-10-29 08:06:23,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:23,459 INFO L93 Difference]: Finished difference Result 4183 states and 6397 transitions. [2020-10-29 08:06:23,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:23,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2020-10-29 08:06:23,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:23,477 INFO L225 Difference]: With dead ends: 4183 [2020-10-29 08:06:23,478 INFO L226 Difference]: Without dead ends: 2104 [2020-10-29 08:06:23,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:06:23,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-10-29 08:06:23,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2073. [2020-10-29 08:06:23,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2073 states. [2020-10-29 08:06:23,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2400 transitions. [2020-10-29 08:06:23,580 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2400 transitions. Word has length 276 [2020-10-29 08:06:23,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:23,582 INFO L481 AbstractCegarLoop]: Abstraction has 2073 states and 2400 transitions. [2020-10-29 08:06:23,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:23,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2400 transitions. [2020-10-29 08:06:23,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-10-29 08:06:23,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:23,591 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:23,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:06:23,592 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:23,593 INFO L82 PathProgramCache]: Analyzing trace with hash -48328421, now seen corresponding path program 1 times [2020-10-29 08:06:23,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:23,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [99568653] [2020-10-29 08:06:23,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:23,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:23,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:24,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 402 [2020-10-29 08:06:28,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:06:28,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 08:06:28,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 08:06:28,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:06:28,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:28,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:28,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:28,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:06:28,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:28,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:28,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:28,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:28,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:28,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:28,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:28,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:06:28,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:28,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:06:28,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:28,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:06:28,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:28,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 08:06:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:29,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:29,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:29,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:29,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-29 08:06:29,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:29,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:06:29,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:29,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-10-29 08:06:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:29,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 08:06:29,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:29,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:06:29,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:29,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:29,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:29,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-29 08:06:29,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:29,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 08:06:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 294 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-29 08:06:29,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [99568653] [2020-10-29 08:06:29,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:29,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:29,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101761803] [2020-10-29 08:06:29,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:29,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:29,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:29,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:29,548 INFO L87 Difference]: Start difference. First operand 2073 states and 2400 transitions. Second operand 7 states. [2020-10-29 08:06:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:33,211 INFO L93 Difference]: Finished difference Result 5909 states and 6890 transitions. [2020-10-29 08:06:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:33,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 386 [2020-10-29 08:06:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:33,236 INFO L225 Difference]: With dead ends: 5909 [2020-10-29 08:06:33,236 INFO L226 Difference]: Without dead ends: 3842 [2020-10-29 08:06:33,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:33,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2020-10-29 08:06:33,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3135. [2020-10-29 08:06:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3135 states. [2020-10-29 08:06:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 3573 transitions. [2020-10-29 08:06:33,353 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 3573 transitions. Word has length 386 [2020-10-29 08:06:33,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:33,353 INFO L481 AbstractCegarLoop]: Abstraction has 3135 states and 3573 transitions. [2020-10-29 08:06:33,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:33,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 3573 transitions. [2020-10-29 08:06:33,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2020-10-29 08:06:33,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:33,376 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:33,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:06:33,377 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:33,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:33,378 INFO L82 PathProgramCache]: Analyzing trace with hash 339915831, now seen corresponding path program 1 times [2020-10-29 08:06:33,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:33,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576375156] [2020-10-29 08:06:33,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:33,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:34,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:38,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:38,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:38,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 740 [2020-10-29 08:06:38,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:06:38,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-29 08:06:38,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:38,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:38,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:38,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:06:38,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:06:38,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:38,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:38,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:38,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:38,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:38,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:06:38,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:38,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:38,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:38,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:38,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:38,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:38,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:06:38,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:38,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:06:38,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:38,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:38,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:38,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 08:06:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:38,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:38,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:38,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:06:38,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:38,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 08:06:38,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:38,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:38,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:38,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:06:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:38,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-29 08:06:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:38,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:39,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:39,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:06:39,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:39,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-10-29 08:06:39,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:39,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:39,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:39,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:06:39,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:39,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-29 08:06:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:39,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:39,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:39,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:39,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:39,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 08:06:39,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:39,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:06:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:39,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:39,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2020-10-29 08:06:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:39,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:39,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:39,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:06:39,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 08:06:39,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:39,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:06:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1283 backedges. 504 proven. 248 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2020-10-29 08:06:40,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576375156] [2020-10-29 08:06:40,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:40,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:40,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884742896] [2020-10-29 08:06:40,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:40,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:40,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:40,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:40,308 INFO L87 Difference]: Start difference. First operand 3135 states and 3573 transitions. Second operand 7 states. [2020-10-29 08:06:44,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:44,728 INFO L93 Difference]: Finished difference Result 7390 states and 8686 transitions. [2020-10-29 08:06:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:44,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 720 [2020-10-29 08:06:44,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:44,753 INFO L225 Difference]: With dead ends: 7390 [2020-10-29 08:06:44,753 INFO L226 Difference]: Without dead ends: 4261 [2020-10-29 08:06:44,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:44,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4261 states. [2020-10-29 08:06:44,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4261 to 3839. [2020-10-29 08:06:44,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3839 states. [2020-10-29 08:06:44,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3839 states to 3839 states and 4275 transitions. [2020-10-29 08:06:44,904 INFO L78 Accepts]: Start accepts. Automaton has 3839 states and 4275 transitions. Word has length 720 [2020-10-29 08:06:44,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:44,905 INFO L481 AbstractCegarLoop]: Abstraction has 3839 states and 4275 transitions. [2020-10-29 08:06:44,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3839 states and 4275 transitions. [2020-10-29 08:06:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2020-10-29 08:06:44,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:44,934 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:44,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:06:44,934 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:44,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:44,935 INFO L82 PathProgramCache]: Analyzing trace with hash 897709162, now seen corresponding path program 1 times [2020-10-29 08:06:44,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:44,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485522939] [2020-10-29 08:06:44,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:45,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:45,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 749 [2020-10-29 08:06:50,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:06:50,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-29 08:06:50,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:50,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-29 08:06:50,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:06:50,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:50,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:06:50,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:50,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:06:50,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 08:06:50,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:06:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-29 08:06:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:50,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:50,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:06:50,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:50,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-29 08:06:50,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:50,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:06:50,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:50,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-10-29 08:06:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:50,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:51,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:51,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:51,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:51,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:06:51,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:51,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:06:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:51,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:51,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-10-29 08:06:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:51,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:51,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:51,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:06:51,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 08:06:51,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:51,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:06:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:51,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 391 proven. 248 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2020-10-29 08:06:51,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485522939] [2020-10-29 08:06:51,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:51,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:51,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113426048] [2020-10-29 08:06:51,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:51,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:51,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:51,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:51,704 INFO L87 Difference]: Start difference. First operand 3839 states and 4275 transitions. Second operand 7 states. [2020-10-29 08:06:55,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:55,364 INFO L93 Difference]: Finished difference Result 9408 states and 10614 transitions. [2020-10-29 08:06:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:55,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 731 [2020-10-29 08:06:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:55,389 INFO L225 Difference]: With dead ends: 9408 [2020-10-29 08:06:55,390 INFO L226 Difference]: Without dead ends: 5575 [2020-10-29 08:06:55,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:06:55,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2020-10-29 08:06:55,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5557. [2020-10-29 08:06:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5557 states. [2020-10-29 08:06:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 6150 transitions. [2020-10-29 08:06:55,538 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 6150 transitions. Word has length 731 [2020-10-29 08:06:55,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:55,539 INFO L481 AbstractCegarLoop]: Abstraction has 5557 states and 6150 transitions. [2020-10-29 08:06:55,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 6150 transitions. [2020-10-29 08:06:55,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2020-10-29 08:06:55,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:55,554 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:55,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:06:55,555 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:55,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:55,556 INFO L82 PathProgramCache]: Analyzing trace with hash -765878128, now seen corresponding path program 1 times [2020-10-29 08:06:55,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:55,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197789181] [2020-10-29 08:06:55,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:55,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:55,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:00,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:00,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 825 [2020-10-29 08:07:00,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:07:00,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-29 08:07:00,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:00,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:00,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:00,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-29 08:07:00,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:07:00,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:00,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:00,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:00,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:00,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:00,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:07:00,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:00,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:00,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:00,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:00,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:07:00,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:00,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:07:00,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:00,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-29 08:07:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:01,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:01,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:01,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:07:01,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:01,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:07:01,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:01,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:07:01,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:01,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-29 08:07:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:01,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:01,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:01,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:07:01,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:01,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-29 08:07:01,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:01,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:07:01,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:01,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2020-10-29 08:07:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:01,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:01,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:01,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:07:01,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:01,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-29 08:07:01,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:01,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:01,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:07:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:01,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:02,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1074 backedges. 501 proven. 214 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2020-10-29 08:07:02,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197789181] [2020-10-29 08:07:02,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:02,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:02,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785888617] [2020-10-29 08:07:02,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:02,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:02,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:02,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:02,605 INFO L87 Difference]: Start difference. First operand 5557 states and 6150 transitions. Second operand 7 states. [2020-10-29 08:07:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:08,151 INFO L93 Difference]: Finished difference Result 11461 states and 12668 transitions. [2020-10-29 08:07:08,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:07:08,159 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 807 [2020-10-29 08:07:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:08,187 INFO L225 Difference]: With dead ends: 11461 [2020-10-29 08:07:08,187 INFO L226 Difference]: Without dead ends: 5910 [2020-10-29 08:07:08,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:08,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2020-10-29 08:07:08,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5557. [2020-10-29 08:07:08,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5557 states. [2020-10-29 08:07:08,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 6125 transitions. [2020-10-29 08:07:08,353 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 6125 transitions. Word has length 807 [2020-10-29 08:07:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:08,355 INFO L481 AbstractCegarLoop]: Abstraction has 5557 states and 6125 transitions. [2020-10-29 08:07:08,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 6125 transitions. [2020-10-29 08:07:08,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2020-10-29 08:07:08,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:08,372 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:08,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:07:08,372 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:08,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:08,373 INFO L82 PathProgramCache]: Analyzing trace with hash 587346457, now seen corresponding path program 1 times [2020-10-29 08:07:08,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:08,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870436939] [2020-10-29 08:07:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:08,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:08,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:08,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:11,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 835 [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-29 08:07:13,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:13,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:13,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:13,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:13,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:07:13,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:13,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:13,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:13,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:13,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:13,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:07:13,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:13,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-29 08:07:13,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:13,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:07:13,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-29 08:07:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:14,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:14,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:14,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:14,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:14,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 08:07:14,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:14,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:14,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:14,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:14,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:07:14,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-29 08:07:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:14,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:14,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:14,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:07:14,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:14,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:07:14,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:14,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:14,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:14,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:07:14,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:14,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2020-10-29 08:07:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:14,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:14,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:14,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:14,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:14,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:07:14,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:14,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:07:14,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:14,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-29 08:07:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:14,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:14,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:14,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:07:14,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:14,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 08:07:14,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:14,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:07:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:14,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:14,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 318 proven. 746 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2020-10-29 08:07:14,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870436939] [2020-10-29 08:07:14,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:14,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:14,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504996453] [2020-10-29 08:07:14,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:14,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:14,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:14,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:14,996 INFO L87 Difference]: Start difference. First operand 5557 states and 6125 transitions. Second operand 7 states. [2020-10-29 08:07:20,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:20,707 INFO L93 Difference]: Finished difference Result 12496 states and 13814 transitions. [2020-10-29 08:07:20,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:07:20,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 815 [2020-10-29 08:07:20,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:20,736 INFO L225 Difference]: With dead ends: 12496 [2020-10-29 08:07:20,736 INFO L226 Difference]: Without dead ends: 6945 [2020-10-29 08:07:20,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:07:20,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6945 states. [2020-10-29 08:07:20,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6945 to 6913. [2020-10-29 08:07:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6913 states. [2020-10-29 08:07:20,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 7557 transitions. [2020-10-29 08:07:20,952 INFO L78 Accepts]: Start accepts. Automaton has 6913 states and 7557 transitions. Word has length 815 [2020-10-29 08:07:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:20,952 INFO L481 AbstractCegarLoop]: Abstraction has 6913 states and 7557 transitions. [2020-10-29 08:07:20,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:20,953 INFO L276 IsEmpty]: Start isEmpty. Operand 6913 states and 7557 transitions. [2020-10-29 08:07:20,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 999 [2020-10-29 08:07:20,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:20,979 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:20,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:07:20,980 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:20,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:20,981 INFO L82 PathProgramCache]: Analyzing trace with hash 344510066, now seen corresponding path program 1 times [2020-10-29 08:07:20,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:20,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551950033] [2020-10-29 08:07:20,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:21,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:22,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:22,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:23,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:26,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:26,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1020 [2020-10-29 08:07:26,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:07:26,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-29 08:07:26,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:26,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:07:26,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:26,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:26,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:26,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:26,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:26,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:26,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:07:26,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:26,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:26,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:26,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:26,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:26,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:26,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:26,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:07:26,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:26,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-29 08:07:26,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:26,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:26,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:26,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:07:26,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:07:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:07:27,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:07:27,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:07:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:07:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:27,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:07:27,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:07:27,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:07:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:07:27,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:07:27,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:07:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-29 08:07:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:27,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:07:27,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:07:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:27,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:07:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:27,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:27,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:07:27,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 08:07:27,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:27,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:07:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 366 proven. 655 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2020-10-29 08:07:28,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551950033] [2020-10-29 08:07:28,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:28,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:28,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711936594] [2020-10-29 08:07:28,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:28,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:28,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:28,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:28,461 INFO L87 Difference]: Start difference. First operand 6913 states and 7557 transitions. Second operand 7 states. [2020-10-29 08:07:32,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:32,290 INFO L93 Difference]: Finished difference Result 14524 states and 15881 transitions. [2020-10-29 08:07:32,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:07:32,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 998 [2020-10-29 08:07:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:32,320 INFO L225 Difference]: With dead ends: 14524 [2020-10-29 08:07:32,320 INFO L226 Difference]: Without dead ends: 7617 [2020-10-29 08:07:32,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:07:32,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2020-10-29 08:07:32,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 7591. [2020-10-29 08:07:32,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7591 states. [2020-10-29 08:07:32,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7591 states to 7591 states and 8262 transitions. [2020-10-29 08:07:32,552 INFO L78 Accepts]: Start accepts. Automaton has 7591 states and 8262 transitions. Word has length 998 [2020-10-29 08:07:32,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:32,553 INFO L481 AbstractCegarLoop]: Abstraction has 7591 states and 8262 transitions. [2020-10-29 08:07:32,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:32,553 INFO L276 IsEmpty]: Start isEmpty. Operand 7591 states and 8262 transitions. [2020-10-29 08:07:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1246 [2020-10-29 08:07:32,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:32,580 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:32,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:07:32,581 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:32,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:32,581 INFO L82 PathProgramCache]: Analyzing trace with hash -459411903, now seen corresponding path program 1 times [2020-10-29 08:07:32,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:32,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630519798] [2020-10-29 08:07:32,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:32,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:37,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1269 [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:07:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:38,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:38,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:38,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:38,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:38,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:07:38,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:38,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:38,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:38,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:38,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:38,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:38,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:38,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:07:38,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-29 08:07:38,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:38,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:38,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:38,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:38,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:07:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:38,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:07:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:38,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:38,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:38,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:07:38,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:38,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-29 08:07:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:38,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:07:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:39,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:07:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:39,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:39,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:39,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:07:39,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:39,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:07:39,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:39,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:07:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:39,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:39,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:07:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:39,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:39,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:39,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:39,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:39,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:07:39,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:39,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:07:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:39,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:39,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-29 08:07:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:39,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:39,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:39,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:39,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 08:07:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:39,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:39,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 08:07:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:39,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:39,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:39,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:07:39,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:07:39,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:39,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:07:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 688 proven. 667 refuted. 0 times theorem prover too weak. 1713 trivial. 0 not checked. [2020-10-29 08:07:41,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630519798] [2020-10-29 08:07:41,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:41,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:07:41,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785619571] [2020-10-29 08:07:41,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:07:41,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:41,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:07:41,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:07:41,009 INFO L87 Difference]: Start difference. First operand 7591 states and 8262 transitions. Second operand 8 states. [2020-10-29 08:07:46,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:46,542 INFO L93 Difference]: Finished difference Result 16544 states and 18083 transitions. [2020-10-29 08:07:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 08:07:46,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1245 [2020-10-29 08:07:46,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:46,573 INFO L225 Difference]: With dead ends: 16544 [2020-10-29 08:07:46,573 INFO L226 Difference]: Without dead ends: 9635 [2020-10-29 08:07:46,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:07:46,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2020-10-29 08:07:46,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 8614. [2020-10-29 08:07:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8614 states. [2020-10-29 08:07:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8614 states to 8614 states and 9267 transitions. [2020-10-29 08:07:46,791 INFO L78 Accepts]: Start accepts. Automaton has 8614 states and 9267 transitions. Word has length 1245 [2020-10-29 08:07:46,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:46,792 INFO L481 AbstractCegarLoop]: Abstraction has 8614 states and 9267 transitions. [2020-10-29 08:07:46,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:07:46,792 INFO L276 IsEmpty]: Start isEmpty. Operand 8614 states and 9267 transitions. [2020-10-29 08:07:46,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1280 [2020-10-29 08:07:46,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:46,830 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:46,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:07:46,830 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:46,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:46,831 INFO L82 PathProgramCache]: Analyzing trace with hash 2033566580, now seen corresponding path program 1 times [2020-10-29 08:07:46,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:46,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980451137] [2020-10-29 08:07:46,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:47,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:47,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:48,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:48,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:48,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1305 [2020-10-29 08:07:52,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:07:52,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-29 08:07:52,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:52,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1017 [2020-10-29 08:07:52,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:07:52,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:52,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:52,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:52,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:07:52,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:52,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:52,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:52,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:52,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:07:52,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:52,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:07:52,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:52,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:07:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:52,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:07:52,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:52,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:07:52,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:52,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:52,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:52,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:52,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:07:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:52,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:07:52,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:52,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:07:52,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:52,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:52,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:52,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:52,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:07:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:52,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:52,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:52,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:07:52,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:52,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:52,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:07:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:52,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:52,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:52,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:07:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:52,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:52,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:07:52,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:53,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:07:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:53,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:53,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:07:53,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 08:07:53,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:53,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-29 08:07:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3815 backedges. 1468 proven. 2 refuted. 0 times theorem prover too weak. 2345 trivial. 0 not checked. [2020-10-29 08:07:54,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980451137] [2020-10-29 08:07:54,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:54,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:54,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012590783] [2020-10-29 08:07:54,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:54,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:54,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:54,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:54,565 INFO L87 Difference]: Start difference. First operand 8614 states and 9267 transitions. Second operand 7 states. [2020-10-29 08:07:59,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:59,474 INFO L93 Difference]: Finished difference Result 19936 states and 21497 transitions. [2020-10-29 08:07:59,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:07:59,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1279 [2020-10-29 08:07:59,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:59,521 INFO L225 Difference]: With dead ends: 19936 [2020-10-29 08:07:59,521 INFO L226 Difference]: Without dead ends: 11323 [2020-10-29 08:07:59,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:07:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11323 states. [2020-10-29 08:07:59,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11323 to 10635. [2020-10-29 08:07:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10635 states. [2020-10-29 08:07:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10635 states to 10635 states and 11328 transitions. [2020-10-29 08:07:59,760 INFO L78 Accepts]: Start accepts. Automaton has 10635 states and 11328 transitions. Word has length 1279 [2020-10-29 08:07:59,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:59,762 INFO L481 AbstractCegarLoop]: Abstraction has 10635 states and 11328 transitions. [2020-10-29 08:07:59,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 10635 states and 11328 transitions. [2020-10-29 08:07:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1395 [2020-10-29 08:07:59,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:59,804 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:59,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:07:59,805 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:59,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:59,806 INFO L82 PathProgramCache]: Analyzing trace with hash 844929665, now seen corresponding path program 1 times [2020-10-29 08:07:59,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:59,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78853450] [2020-10-29 08:07:59,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:00,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:00,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:04,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:04,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1418 [2020-10-29 08:08:05,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:08:05,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-29 08:08:05,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:05,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:08:05,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:08:05,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:05,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:05,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:05,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:05,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:05,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:05,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:05,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:08:05,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:05,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:05,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:05,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:08:05,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:05,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:05,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:05,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:05,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:05,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:08:05,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:05,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:05,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:05,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:08:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:05,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:08:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:05,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:06,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:08:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:06,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:08:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:06,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:06,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:06,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:06,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1118 [2020-10-29 08:08:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:06,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:06,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:06,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:06,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:06,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:08:06,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:06,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:06,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:06,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:08:06,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:06,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3646 backedges. 1187 proven. 323 refuted. 0 times theorem prover too weak. 2136 trivial. 0 not checked. [2020-10-29 08:08:08,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78853450] [2020-10-29 08:08:08,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:08,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:08,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915665517] [2020-10-29 08:08:08,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:08,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:08,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:08,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:08,216 INFO L87 Difference]: Start difference. First operand 10635 states and 11328 transitions. Second operand 7 states. [2020-10-29 08:08:12,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:12,736 INFO L93 Difference]: Finished difference Result 20598 states and 21971 transitions. [2020-10-29 08:08:12,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:08:12,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1394 [2020-10-29 08:08:12,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:12,779 INFO L225 Difference]: With dead ends: 20598 [2020-10-29 08:08:12,780 INFO L226 Difference]: Without dead ends: 10645 [2020-10-29 08:08:12,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:08:12,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2020-10-29 08:08:12,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 10635. [2020-10-29 08:08:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10635 states. [2020-10-29 08:08:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10635 states to 10635 states and 11324 transitions. [2020-10-29 08:08:12,994 INFO L78 Accepts]: Start accepts. Automaton has 10635 states and 11324 transitions. Word has length 1394 [2020-10-29 08:08:12,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:12,996 INFO L481 AbstractCegarLoop]: Abstraction has 10635 states and 11324 transitions. [2020-10-29 08:08:12,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:12,996 INFO L276 IsEmpty]: Start isEmpty. Operand 10635 states and 11324 transitions. [2020-10-29 08:08:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1413 [2020-10-29 08:08:13,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:13,039 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:13,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:08:13,040 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:13,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:13,042 INFO L82 PathProgramCache]: Analyzing trace with hash -842776210, now seen corresponding path program 1 times [2020-10-29 08:08:13,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:13,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327538953] [2020-10-29 08:08:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:13,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:13,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:13,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:14,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:14,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:18,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1438 [2020-10-29 08:08:18,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:08:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 08:08:18,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:18,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 761 [2020-10-29 08:08:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:08:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:18,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:18,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:18,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:18,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:08:18,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:18,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:18,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:18,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:18,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:18,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:18,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:18,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:08:18,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:18,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:18,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:18,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:18,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:18,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:18,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:18,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:08:18,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:18,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:18,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:18,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:18,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:18,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:18,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:18,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:18,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:18,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:08:18,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:18,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:18,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:18,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:18,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:18,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:18,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:08:18,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:18,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:18,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:18,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:18,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:18,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:18,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:08:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:18,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:19,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:19,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:19,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 08:08:19,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:19,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:19,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:19,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:19,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:08:19,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:19,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:08:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:19,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:19,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:08:19,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:19,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-29 08:08:19,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:19,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:08:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:19,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2020-10-29 08:08:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:19,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:19,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:08:19,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:19,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:08:19,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:19,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:08:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:19,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:19,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1136 [2020-10-29 08:08:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:20,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:20,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:20,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:20,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:20,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:08:20,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:20,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:20,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:20,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:08:20,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:20,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4019 backedges. 1276 proven. 323 refuted. 0 times theorem prover too weak. 2420 trivial. 0 not checked. [2020-10-29 08:08:22,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327538953] [2020-10-29 08:08:22,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:22,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:08:22,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079511680] [2020-10-29 08:08:22,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:08:22,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:22,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:08:22,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:08:22,366 INFO L87 Difference]: Start difference. First operand 10635 states and 11324 transitions. Second operand 8 states. [2020-10-29 08:08:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:28,417 INFO L93 Difference]: Finished difference Result 20951 states and 22347 transitions. [2020-10-29 08:08:28,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:08:28,419 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1412 [2020-10-29 08:08:28,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:28,453 INFO L225 Difference]: With dead ends: 20951 [2020-10-29 08:08:28,453 INFO L226 Difference]: Without dead ends: 10998 [2020-10-29 08:08:28,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:08:28,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10998 states. [2020-10-29 08:08:28,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10998 to 10633. [2020-10-29 08:08:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10633 states. [2020-10-29 08:08:28,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10633 states to 10633 states and 11289 transitions. [2020-10-29 08:08:28,686 INFO L78 Accepts]: Start accepts. Automaton has 10633 states and 11289 transitions. Word has length 1412 [2020-10-29 08:08:28,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:28,688 INFO L481 AbstractCegarLoop]: Abstraction has 10633 states and 11289 transitions. [2020-10-29 08:08:28,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:08:28,688 INFO L276 IsEmpty]: Start isEmpty. Operand 10633 states and 11289 transitions. [2020-10-29 08:08:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1634 [2020-10-29 08:08:28,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:28,729 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:28,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:08:28,729 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:28,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1631255455, now seen corresponding path program 1 times [2020-10-29 08:08:28,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:28,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651918245] [2020-10-29 08:08:28,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:29,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:29,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:30,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:30,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1661 [2020-10-29 08:08:34,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:08:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 08:08:34,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 732 [2020-10-29 08:08:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:08:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:34,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:08:34,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:34,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:08:34,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:34,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:08:34,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:34,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:08:34,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:34,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:08:34,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:08:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:34,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:08:34,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:08:34,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:08:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:36,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 972 [2020-10-29 08:08:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:36,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:36,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:36,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:08:36,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:36,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-29 08:08:36,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:36,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:08:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:36,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:36,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1245 [2020-10-29 08:08:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:36,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:36,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:36,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:08:36,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:36,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:08:36,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:36,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:08:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:36,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:36,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1357 [2020-10-29 08:08:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:36,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:36,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:36,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:36,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:08:36,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:36,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:08:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:36,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5241 backedges. 1328 proven. 570 refuted. 0 times theorem prover too weak. 3343 trivial. 0 not checked. [2020-10-29 08:08:40,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651918245] [2020-10-29 08:08:40,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:40,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:40,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559632078] [2020-10-29 08:08:40,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:40,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:40,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:40,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:40,806 INFO L87 Difference]: Start difference. First operand 10633 states and 11289 transitions. Second operand 7 states. [2020-10-29 08:08:46,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:46,156 INFO L93 Difference]: Finished difference Result 23648 states and 25185 transitions. [2020-10-29 08:08:46,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:46,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1633 [2020-10-29 08:08:46,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:46,200 INFO L225 Difference]: With dead ends: 23648 [2020-10-29 08:08:46,200 INFO L226 Difference]: Without dead ends: 13697 [2020-10-29 08:08:46,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:08:46,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13697 states. [2020-10-29 08:08:46,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13697 to 13683. [2020-10-29 08:08:46,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13683 states. [2020-10-29 08:08:46,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13683 states to 13683 states and 14487 transitions. [2020-10-29 08:08:46,476 INFO L78 Accepts]: Start accepts. Automaton has 13683 states and 14487 transitions. Word has length 1633 [2020-10-29 08:08:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:46,477 INFO L481 AbstractCegarLoop]: Abstraction has 13683 states and 14487 transitions. [2020-10-29 08:08:46,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 13683 states and 14487 transitions. [2020-10-29 08:08:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1665 [2020-10-29 08:08:46,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:46,525 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:46,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:08:46,526 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:46,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:46,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1375480008, now seen corresponding path program 1 times [2020-10-29 08:08:46,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:46,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873937235] [2020-10-29 08:08:46,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:48,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:48,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:49,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:50,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:51,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:51,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1694 [2020-10-29 08:08:51,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 08:08:51,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 08:08:51,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:51,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 08:08:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 761 [2020-10-29 08:08:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 929 [2020-10-29 08:08:51,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:52,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:52,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:52,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:52,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:52,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:52,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:08:52,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:52,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:52,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:52,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:52,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:52,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:52,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:52,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:52,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 08:08:52,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:52,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:52,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 08:08:52,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:52,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:52,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:52,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:52,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:52,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:08:52,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:52,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:52,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:52,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:52,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:52,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:52,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:52,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:52,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:08:52,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:52,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:52,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:52,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:52,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:52,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:52,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:52,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:52,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:52,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:08:52,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:52,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:52,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:08:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:52,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:52,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:08:52,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:53,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:08:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:53,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:53,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:53,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:53,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:53,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:53,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-29 08:08:53,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:53,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 08:08:53,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:53,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:08:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:53,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:53,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:53,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:53,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:53,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:53,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-29 08:08:53,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:53,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:08:53,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:53,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:08:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:53,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:53,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:08:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:54,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1276 [2020-10-29 08:08:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:54,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:54,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:08:54,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 08:08:54,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:54,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:54,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:54,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:54,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:08:54,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:54,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1388 [2020-10-29 08:08:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:54,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:54,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:08:54,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:54,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-10-29 08:08:54,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:54,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:54,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:54,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:54,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-29 08:08:54,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6110 backedges. 732 proven. 10 refuted. 0 times theorem prover too weak. 5368 trivial. 0 not checked. [2020-10-29 08:08:56,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873937235] [2020-10-29 08:08:56,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:56,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:08:56,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371755074] [2020-10-29 08:08:56,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:08:56,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:56,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:08:56,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:08:56,072 INFO L87 Difference]: Start difference. First operand 13683 states and 14487 transitions. Second operand 5 states. [2020-10-29 08:08:59,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:59,686 INFO L93 Difference]: Finished difference Result 26688 states and 28280 transitions. [2020-10-29 08:08:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:08:59,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1664 [2020-10-29 08:08:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:59,731 INFO L225 Difference]: With dead ends: 26688 [2020-10-29 08:08:59,731 INFO L226 Difference]: Without dead ends: 13687 [2020-10-29 08:08:59,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:08:59,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13687 states. [2020-10-29 08:09:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13687 to 13683. [2020-10-29 08:09:00,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13683 states. [2020-10-29 08:09:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13683 states to 13683 states and 14405 transitions. [2020-10-29 08:09:00,041 INFO L78 Accepts]: Start accepts. Automaton has 13683 states and 14405 transitions. Word has length 1664 [2020-10-29 08:09:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:00,043 INFO L481 AbstractCegarLoop]: Abstraction has 13683 states and 14405 transitions. [2020-10-29 08:09:00,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:09:00,044 INFO L276 IsEmpty]: Start isEmpty. Operand 13683 states and 14405 transitions. [2020-10-29 08:09:00,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1693 [2020-10-29 08:09:00,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:00,086 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:00,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:09:00,086 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:00,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:00,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1853296904, now seen corresponding path program 1 times [2020-10-29 08:09:00,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:00,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477409300] [2020-10-29 08:09:00,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:00,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:01,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:01,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:01,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:01,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:02,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:05,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:05,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1722 [2020-10-29 08:09:05,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:09:05,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-29 08:09:05,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:05,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:05,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:05,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1017 [2020-10-29 08:09:05,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:09:05,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:05,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:05,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:05,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:05,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:05,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:05,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:05,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:05,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:05,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:05,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:05,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:05,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:05,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:05,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:05,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:05,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:05,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:09:05,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:05,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:05,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:05,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:05,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:06,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:06,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:06,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:06,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:06,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:06,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:06,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:09:06,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:06,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:09:06,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:06,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:06,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:09:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:06,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:06,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:06,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:06,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:06,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:09:06,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:06,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:06,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:09:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:06,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:06,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:06,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:06,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:09:06,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:06,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:06,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:09:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:06,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:06,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:06,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:06,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:06,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:09:06,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:06,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:06,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:06,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:09:06,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:06,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:09:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:06,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:06,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:09:06,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:07,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1276 [2020-10-29 08:09:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:07,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:07,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:07,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:09:07,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:07,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 08:09:07,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:07,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:09:07,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:07,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:07,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1530 [2020-10-29 08:09:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:07,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:07,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:07,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:09,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6087 backedges. 1670 proven. 351 refuted. 0 times theorem prover too weak. 4066 trivial. 0 not checked. [2020-10-29 08:09:09,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477409300] [2020-10-29 08:09:09,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:09,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:09,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647460623] [2020-10-29 08:09:09,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:09,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:09,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:09,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:09,191 INFO L87 Difference]: Start difference. First operand 13683 states and 14405 transitions. Second operand 7 states.